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Ultra-compact silicon multi-mode waveguide bend based on subwavelength asymmetric Y-junction

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Abstract

An ultra-compact multi-mode bend composed of a pair of asymmetric Y junction based on inverse-designed subwavelength structures is proposed and experimentally demonstrated with inter-mode crosstalk < -24 dB, a footprint of 3.6 × 3.6 µm2.

© 2018 The Author(s)

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